//ajax code for username lookup
  var xmlhttp
  
  function showHint(str) {
    if (str.length==0)  {
      document.getElementById("txtHint").innerHTML="";
      return;
    }
    xmlhttp=GetXmlHttpObject();
    if (xmlhttp==null) {
      return;
    }
    var url="http://www.1911.com/includes/check_username.php";
    url=url+"?q="+encodeURIComponent(str);
    url=url+"&sid="+Math.random();
    xmlhttp.onreadystatechange=stateChanged;
    xmlhttp.open("GET",url,true);
    xmlhttp.send(null);
  }
  
  //ajax function to instantly load user variables
  
  function stateChanged()  {
    if (xmlhttp.readyState==4)  {
        document.getElementById("txtHint").innerHTML=xmlhttp.responseText;
    }
  }
  
  function GetXmlHttpObject() {
    if (window.XMLHttpRequest)    {
      // code for IE7+, Firefox, Chrome, Opera, Safari
      return new XMLHttpRequest();
    }
    if (window.ActiveXObject) {
      // code for IE6, IE5
      return new ActiveXObject("Microsoft.XMLHTTP");
    }
    return null;
  }